Information processing terminal and content writing system
First Claim
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1. An information processing terminal for writing content data into a memory, comprising:
- control means for transmitting, to a server connected therewith via a network, a request to acquire content data containing identification information for the memory, and controlling writing of content data into the memory;
content input means for inputting encrypted content data from said server; and
command input means for inputting encrypted command data from said server,the control means being capable of acquiring, as a response by the server to the request to acquire, the encrypted content data input by the content input means and the encrypted command data input by the command input means and providing the acquired encrypted content data and encrypted command data to said memory,said memory including onlya memory array, anda memory controller configuredto decode the encrypted content data and encrypted command data via a decoder circuit, andto control writing of the decoded content data into said memory array using the decoded command data,the encrypted command data being generated by encrypting command data based on an encryption parameter, andthe encrypted content data being generated by encrypting content data based on an encryption key that uses the identification information.
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Abstract
An information processing terminal sends a download request for content data to a server. The server transmits command data to a command encryption device. The command encryption device encrypts the command data in an encryption circuit. The server sends the content data and the encrypted command data to the information processing terminal. A control part of the information processing terminal transmits the content data and the encrypted command data to a memory controller. The memory controller decodes the command data in a decoder circuit and stores the content data to a memory array.
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Citations
13 Claims
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1. An information processing terminal for writing content data into a memory, comprising:
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control means for transmitting, to a server connected therewith via a network, a request to acquire content data containing identification information for the memory, and controlling writing of content data into the memory; content input means for inputting encrypted content data from said server; and command input means for inputting encrypted command data from said server, the control means being capable of acquiring, as a response by the server to the request to acquire, the encrypted content data input by the content input means and the encrypted command data input by the command input means and providing the acquired encrypted content data and encrypted command data to said memory, said memory including only a memory array, and a memory controller configured to decode the encrypted content data and encrypted command data via a decoder circuit, and to control writing of the decoded content data into said memory array using the decoded command data, the encrypted command data being generated by encrypting command data based on an encryption parameter, and the encrypted content data being generated by encrypting content data based on an encryption key that uses the identification information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for writing content data into a memory, comprising:
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an information processing terminal; and a server, wherein said information processing terminal includes control means for transmitting, to a server connected therewith via a network, a request to acquire content data containing identification information for the memory, and controlling writing of content data into the memory; content input means for inputting encrypted content data from said server, first downloading means for downloading encrypted command data from said server, the control means being capable of acquiring, as a response by the server to the request to acquire, the encrypted content data input by the content input means and the encrypted command data downloaded by the first downloading means and providing the acquired encrypted content data and encrypted command data to said memory, said memory including only a memory array, and a memory controller configured to decode the encrypted content data and encrypted command data via a decoder circuit, and to control writing of the decoded content data into said memory array using the decoded command data, the encrypted command data being generated by encrypting command data based on an encryption parameter, and the encrypted content data being generated by encrypting content data based on an encryption key that uses the identification information. - View Dependent Claims (8, 9, 10, 11)
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12. A method of an information processing terminal for writing content data into a memory, the method comprising:
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transmitting, at a control unit, to a server connected therewith via a network, a request to acquire content data containing identification information for the memory, and controlling writing of content data into the memory; inputting, at a content input unit, encrypted content data from said server; and inputting, at a command input unit, encrypted command data from said server, wherein the control unit is capable of acquiring, as a response by the server to the request to acquire, the encrypted content data input by the content input unit and the encrypted command data input by the command input unit and providing the acquired encrypted content data and encrypted command data to said memory, the memory including only a memory array and a memory controller; decoding, at the memory controller, the encrypted content data and encrypted command data via a decoder circuit; and controlling, at the memory controller, writing of the decoded content data into said memory array using the decoded command data, the encrypted command data being generated by encrypting command data based on an encryption parameter, and the encrypted content data being generated by encrypting content data based on an encryption key that uses the identification information.
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13. An information processing terminal for writing content data into a memory, comprising:
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a control unit configured to transmit, to a server connected therewith via a network, a request to acquire content data containing identification information for the memory, and to control writing of content data into the memory; a content input unit configured to input encrypted content data from said server; and a command input unit configured to input encrypted command data from said server wherein the control unit is capable of acquiring, as a response by the server to the request to acquire, the encrypted content data input by the content input unit and the encrypted command data input by the command input unit and providing the acquired encrypted content data and encrypted command data to said memory, said memory including only a memory array, and a memory controller configured to decode the encrypted content data and encrypted command data via a decoder circuit, and to control the writing of the decoded content data into said memory array using the decoded command data, the encrypted command data being generated by encrypting command data based on an encryption parameter, and the encrypted content data being generated by encrypting content data based on an encryption key that uses the identification information.
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Specification
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Current AssigneeMegachips Corporation
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Original AssigneeMegachips Corporation
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InventorsTsukazaki, Fumiaki
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Primary Examiner(s)Hirl, Joseph P
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Assistant Examiner(s)GYORFI, THOMAS A
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Application NumberUS11/758,397Publication NumberTime in Patent Office2,975 DaysField of Search713189-190, 713/192, 726/26, 726/27US Class Current1/1CPC Class CodesG06F 21/50 Monitoring users, programs ...G06F 21/62 Protecting access to data v...G06F 21/78 to assure secure storage of...
